Cita APA (7a ed.)

Simpson, C. M., & Freehling, W. W. (2010). Showdown in Virginia: The 1861 Convention and the Fate of the Union. University of Virginia Press.

Cita Chicago Style (17a ed.)

Simpson, Craig M., y William W. Freehling. Showdown in Virginia: The 1861 Convention and the Fate of the Union. Charlottesville: University of Virginia Press, 2010.

Cita MLA (8a ed.)

Simpson, Craig M., y William W. Freehling. Showdown in Virginia: The 1861 Convention and the Fate of the Union. University of Virginia Press, 2010.